Female Reproductive Cycle | Ovulation 

My Same Story ❤️

This comment is making me cry 😢

Seriously! he is blessed. Lots of thanks to him from my side too..thank you prof.zach for being so Fantastic teacher.

Revisiting in my clincial years too.

I feel you, because thats exactly how I feel when he explains things thoroughly yet so easily.

I'm a med student and i don't earn money as well but I signed his patreon anyway and I give him 1$/month. Obsly it aint much but if everyone who watches his videos did that it would help for sure, and it's my way to thank him for this amazing work :)

Bo

same i swear

Ii kkk lklp ya Are sR RSS aww dx oo::2-' xx oof Hhhh I’ll kj kee um my dad furye🥠❤️🍖🍖🥗🍖🥗👌😅😅

He's just a miracle I'm a med student I love him so much ❤️❤️❤️❤️

L

Endocrinologists don’t watch stuff like this 😂 If you really are an endocrinologist and you’re actually interested in detailed understanding of how the human body functions 🧐I am pleasantly surprised. I thought “Endocrinology” translates to “The END of ology” the end of the study of something 🤓I know it really means “within” “internal” or “inside” study 👀🫣but most endocrinologists seem to imagine that THAT means they just learn everything from within themselves. That’s just what I think bcuz they don’t ask questions, have the least curiosity about what the patient is experiencing that I’ve ever witnessed and they get annoyed with external sources of information (ie: their stupid patients telling them ANYTHING) 😂😂🤣😅

So happy you can benefit from this channel! 👍 Thanks for your support!

A year has past :)

3 years passed

4 years passed

@@alexvidu4517 bhai itna jaldi 4 year passed kaise ho gya😂😂

Same! A long video gone by so fast that i was kinda sad when it was over

Hello

Omor I’m also writing embryology exam soon 😪

Great job! - TG

S absolutely 💯

Ive had this question in my mind for so long..thank you😄

Since GnRH neurons do not have oestrogen receptors (ERa), oestrogen bind on to receptors that are on the Kisspeptin neurons in the hypothalamus, in which they activate GnRH neurons through GPR54. This indirect mechanism allows us to understand why high levels of oestrogen coming from the dominant follicle can increase the activity of GnRH which in turn increase the secretion of LH --> Ovulation. However, in the 7th day of the follicle phase, the oestrogen inhibit the secretion of FSH so that only one follicle will grow to be the dominant one under the stimulation of low levels of FSH (due to the inhibition). We can say that high oestrogen levels have an indirect positive feedback on the GnRH neurons through KIsspeptin, which in turn increased LH secretion, but the negative feedback mechanism for inhibiting FSH during mid follicular phase i couldn't understand. Maybe someone would.

@@noble-quran_hadith the same growing follicle that secretes Oestrogen secretes Inhibin hormone which inturn inhibit secrerton of FSH.

May I ask, how the estrogen goes up again in late follicular stage after its production drops due to inhibition of LH and FSH by earlier high level of estrogen?

Estrogen levels continue to rise as the follicle develops. Progesterone eventually begin to rise as well. Up to a certain point, the estrogen being produced exerts negative feedback on both GnRH and gonadotropin secretion. Around the 14th day of the cycle, the anterior pituitary abruptly changes its response to the persistently high estrogen levels. Rather than suppressing gonadotropin release, the estrogen now has a positive feedback effect. The reasons for this switch are still not clear. The switch to positive feedback provokes a steep surge in LH, and to a lesser degree FSH. High LH levels in turn initiates the process of ovulation, whereby the follicle ruptures and egg is released. After ovulation, the follicle collapses and the cells within it transform. This new structure is called the corpus luteum. The luteal cells produce more progesterone than estrogen, so blood levels of progesterone rise higher than estrogen levels after ovulation. The corpus luteum only remains viable for about 14 days, after which both estrogen and progesterone levels taper off. The declining levels of estrogen remove the negative feedback on GnRH and FSH production, allowing the cycle to begin over again.

Ap ka slection howa ? I mean ka ap na MCAT clear kia?

My first thoughts as well... However I'm so glad I watched it through! Extremely helpful and informational!!!

Omg same here and i was actually kinda sad when the video ended

Same, i used to skip his videos and now he is like the only one i watch! So worth it

14 days is average, but it's not fixed. Luteal phase length can range from about 11-16 days.

Exactly,and that what happend in our collage the doctor leave and u don't understand the purpose from lecture he only say are you understand we say yeah but actually no one get the idea😕 Ninja really forfit alot of respect.

teba younis I believe so😍

😣👍

Not anymore

Well he is a ninja

Why don't we have him in our medical schools 😢

@@bhavya6026 can't afford him he is priceless

Go to med school. We cover all this.

You also forget all this :)

@@nived8476 they're bad lol most of the lot

HOSHAN whereas he remembers everything he ever learnt

HOSHAN although youre right, your neurologist probably doesn’t remember what the fluid filled cavity is called, bummer

You're the best teacher I have ever seen